<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表table表格 -->
      <el-table :data="userList" stripe border>
        <!-- type = index  代表索引列 -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <!-- {{ scope.row.mg_state }} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStageChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="220px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              @click="deleteUser(scope.row.id)"
            ></el-button>
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                @click="showRolesDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页功能 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="dialogVisible"
      width="50%"
      @close="addDialogClose"
    >
      <!-- 内容主体区域 -->
      <el-form
        ref="addFormRef"
        :model="addForm"
        label-width="70px"
        :rules="addFormRules"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="dialogVisible1"
      width="50%"
      @close="editDialogClose"
    >
      <!-- 表单内容区域 -->
      <el-form
        ref="editFormRef"
        :model="editForm"
        label-width="70px"
        :rules="editFormRules"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible1 = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配权限对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="dialogVisible2"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前用户：{{ userInfo.username }}</p>
        <p>当前角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectRole" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible2 = false">取 消</el-button>
        <el-button type="primary" @click="saveUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 自定义邮箱校验规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }
    // 自定义手机号校验规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确手机号'))
    }
    return {
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      // 添加用户对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 修改用户对象
      editForm: {
        id: 0,
        username: '',
        email: '',
        mobile: ''
      },
      // 添加用户的校验规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度为3~10个字符',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码长度为6~15个字符',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改用户的规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      userList: [],
      userInfo: {},
      rolesList: [],
      total: 0,
      selectRole: '',
      dialogVisible: false,
      dialogVisible1: false,
      dialogVisible2: false
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      // console.log(this.queryInfo);
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取用户列表失败！')
      else {
        this.userList = res.data.users
        this.total = res.data.total
      }
      // console.log(res)
    },
    // 监听pagesize改变的事件 （下拉菜单的page）
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newSize) {
      this.queryInfo.pagenum = newSize
      this.getUserList()
    },
    // 监听switch开关状态改变
    async userStageChange(userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('修改用户状态失败')
      }
      this.$message.success('用户状态修改该成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status != 201) {
          return this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        this.dialogVisible = false
        this.getUserList()
      })
    },
    // 点击按钮，修改用户
    editUser() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status != 200) {
          return this.$message.error('修改用户信息失败')
        }
        //关闭对话框
        this.dialogVisible1 = false
        //重新请求用户信息
        this.getUserList()
        this.$message.success('修改用户信息成功！')
      })
    },
    // 点击按钮，删除用户
    async deleteUser(id) {
      const result = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)

      //用户选择确认按钮，res = confirm
      //用户选择取消按钮，res = cancel
      if (result !== 'confirm') {
        return this.$message.info('删除已取消！')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }
      this.$message.success('删除成功！')
      this.getUserList()
    },
    // 展示修改对话框
    showEditDialog(data) {
      this.dialogVisible1 = true
      // console.log(data)
      this.editForm.id = data.id
      this.editForm.username = data.username
      this.editForm.email = data.email
      this.editForm.mobile = data.mobile
      // console.log(this.editForm);
    },
    // 关闭修改对话框，重置规则判断
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    async showRolesDialog(userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status != 200) {
        return this.$message.error('获取角色列表失败!')
      }
      this.rolesList = res.data
      // console.log(this.rolesList);
      this.dialogVisible2 = true
    },
    async saveUserInfo() {
      if (!this.selectRole) {
        return this.$message.error('请选择分配的角色')
      }

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRole
        }
      )
      if (res.meta.status != 200) {
        return this.$message.error('修改角色失败！')
      }
      this.getUserList()
      this.$message.success('角色修改成功！')
      this.dialogVisible2 = false
    },
    setRoleDialogClosed() {
      this.selectRole = ''
      this.userInfo = {}
    }
  }
}
</script>

<style scoped></style>
